Mosa Tsay
Mosa Tsay Cello Scroll square.jpg

Mosa Tsay is a contemporary-minded cellist and concert experience designer based in New York City.

Mosa performs with Wavefield Ensemble and has been a frequent collaborator with International Contemporary Ensemble (ICE) for the premiere of multimedia opera “Echo Drift” at PROTOTYPE Festival and Anna Thorvaldsdottir’s album, AEQUA.

Masterclass with Yo-Yo Ma in Berkeley. Photo: David Bellard

Masterclass with Yo-Yo Ma in Berkeley. Photo: David Bellard

Photo: Clement Lam

Photo: Clement Lam

She has performed with the Danish String Quartet, Joseph Silverstein, Eco Ensemble and participated in orchestral masterclasses with Gustavo Dudamel, Esa-Pekka Salonen, and Valery Gergiev. Her past summer engagements include Ensemble Evolution at Banff Centre, Fontainebleau Schools of Music and Architecture, National Arts Centre Young Artists Program in Ottawa, Canada, St. Lawrence String Quartet Chamber Seminar at Stanford University, and Meadowmount School of Music. Mosa is an alumna of Doublestop Foundation and performed as an ambassador of the foundation after winning its Instrument Loan Competition in 2014.

As former Artistic Director of Celli@Berkeley and a San Francisco-based collective of cellists, Mosa commissioned and premiered new works for celli and electronics in the San Francisco Bay Area. In 2014, she co-produced Celli@Berkeley’s debut CD album in collaboration with composer Jared Redmond and Grammy-winning Barry Phillips. 

Groupmuse in Berkeley, CA. Photo: Megan Moura

Groupmuse in Berkeley, CA. Photo: Megan Moura

She was featured as a soloist with the UC Berkeley Symphony Orchestra as winner of UC Berkeley’s Concerto Competition. Other notable performances have been in masterclasses for Yo-Yo Ma, Frans Helmerson, Hans Jørgen Jensen, Paul Katz, David Geber, Tamás Varga (Vienna Philharmonic), Juilliard String Quartet, Quatuor Ébène, and Kronos Quartet.

Mosa received her Master of Music from The Juilliard School. She holds two bachelor's degrees in Music and in Society and Environment from University of California, Berkeley. Her honors thesis explored “Silence: In Performance and Within the Performer,” an analysis of the role of silence in music by J.S. Bach, Hans Werner Henze and John Cage. She was the recipient of the Eisner Award, Mary Nuñes Souza Prize and Alfred Hertz Traveling Fellowship. 

Born to Taiwanese parents, she began playing cello at age seven in San Diego. Her past teachers include Joel Krosnick, Jonathan Koh, and Catherine Godden.

Mosa plays a 1900 Collin-Mezin cello, on loan from a private collection.

Photo: Erin Pearlman

Photo: Erin Pearlman

Presenting music outside of traditional performance spaces.

Photo: Laura Andrade

Photo: Laura Andrade

In a special partnership with Groupmuse in 2017, Mosa presented two sold-out Massivemuses at a chocolate factory in Brooklyn and a co-working space in San Francisco. Her penchant for seeking interdisciplinary collaborations led to the San Francisco premiere of a work by Scott Rubin for eight cellos and dancer controlling live electronics with motion sensors.

Mosa has performed more than 80 groupmuses in the San Francisco Bay Area and New York.

The most prolific groupmuser in our history. And she’s now, officially, a coast-to-coast Massivemuse impresario.
— Groupmuse

Mosa produced concerts for Celli@Berkeley, a 12-piece cello ensemble, at the Berkeley Art Museum. In 2016, she launched Celloscape, a collective of 14 cellists dedicated to performing new music. The debut concert, held at Bruce Beasley's Sculpture Studio in Oakland, was sponsored by Mrs. Laurence Beasley, Jennifer Howard, Marco Rozzano, and Linda Barnett.

Past Projects.

Mosa was Executive Director and co-founder of Versoi Ensemble, a collaboration between Finnish and American musicians from a previous joint orchestra tour of Juilliard and Sibelius Academy students (conducted by Esa-Pekka Salonen). Versoi Ensemble debuted at Kaufman Center’s Merkin Hall in New York and Holley Hall in Sarasota, Florida in November 2018.

As administrator, she has contributed to Marlboro Music Festival, American Composers Orchestra, and International Contemporary Ensemble.




April 1, 2019 @ Kennedy Center, Washington, DC, USA - Brooklyn Youth Chorus: "Silent Voices": Lovestate

March 29, 2019 @ New York, NY - “Cello Paintmuse” Groupmuse

March 15, 2019 @ 8pm @ Chalet des Artistes (259 Chemin des Viers, Biviers, FRANCE) - Brahms Cello Sonata No. 1 in E Minor, Chopin Cello Sonata

March 2, 2019 @ Berkeley, CA - ECO ENSEMBLE

February 28, 2019 @ San Francisco, CA - “East Meets West - the Reunion!” Groupmuse

February 27, 2019 @ Kensington, CA - “Mosa En Route” Groupmuse


Contact: Collaborate?

All project proposals are welcome. (E.g., space, light, color, electronics, succulents, silence, sculpture, linen, sound installations, improvisation, contact mics)

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